Hi,
I tried to create the HD solution image ad for an all feature display campaign, but failed. However, in the UI page of adwords, that is a description saying that the HD solution is supported. But in the api document, unlike the one in template ads, there is no way to set the dimension for HD image. I have asked the support engineer in China for a long time, he said that adwords engineer will fix this bug in feature, However, there has been 5 months since I asked this question and google is not going to fix it?